Urban evolution becomes a space-transforming agent capable of changing Normalised Difference Vegetation Index(NDVI)and Land Surface Temperature(LST)emissivity reflectance on the land surface.Therefore,this study ident...Urban evolution becomes a space-transforming agent capable of changing Normalised Difference Vegetation Index(NDVI)and Land Surface Temperature(LST)emissivity reflectance on the land surface.Therefore,this study identifies NDVI and LST variations locally,but it can also be applied in other cities on a global scale.In general,it aims to analyse NDVI and LST on surface areas of avenues and urban streets of Sector 1,located in downtown Passo Fundo,in the southern region of Brazil,from 2013 to 2020.Methodologically,treated Landsat 8 satellite images were used to obtain NDVI and LST variations in this study.Subsequently,data of 80 points in the avenues and streets of Sector 1 were collected over a distance of 100 meters spaced from each point.These data were statistically analysed concerning the dispersion of NDVI and LST from 2013 to 2020.The results revealed a strong interaction between NDVI and LST,demonstrating the need to conserve urban vegetation to improve temperature,which positively favours urban ambience indexes.展开更多
This paper discusses the response of the thermal insulation Lining of rigid foam potyurethane （PU） derived from castor oil （Ricinus communis） in heat conditions, based on dynamic climate approach. Liners have been...This paper discusses the response of the thermal insulation Lining of rigid foam potyurethane （PU） derived from castor oil （Ricinus communis） in heat conditions, based on dynamic climate approach. Liners have been widely used, because the coverage of buildings is responsible for the greatest absorption of heat by radiation, but the use of PU foam deMved from this vegetal oil is unprecedented and has the advantage of being biodegradable and renewable. The hot wire paraLleL method provided the thermal conductivity vatue of the foam. The thermo- gravimetric analysis enabled the study of the foam decomposition and its Lifetime by kinetic evaLuation that involves the decomposition process. The PU foam thermal behavior analysis was performed by coLlecting experimental data of internal surface temperature measured by thermocouples and assessed by representative episode of the climatic fact. The results Lead to the conclusion that the PU foamderived from castor oit can be applied to thermat insulation of roof systems and is an environmentaLLy friendly materiaL.展开更多
文摘Urban evolution becomes a space-transforming agent capable of changing Normalised Difference Vegetation Index(NDVI)and Land Surface Temperature(LST)emissivity reflectance on the land surface.Therefore,this study identifies NDVI and LST variations locally,but it can also be applied in other cities on a global scale.In general,it aims to analyse NDVI and LST on surface areas of avenues and urban streets of Sector 1,located in downtown Passo Fundo,in the southern region of Brazil,from 2013 to 2020.Methodologically,treated Landsat 8 satellite images were used to obtain NDVI and LST variations in this study.Subsequently,data of 80 points in the avenues and streets of Sector 1 were collected over a distance of 100 meters spaced from each point.These data were statistically analysed concerning the dispersion of NDVI and LST from 2013 to 2020.The results revealed a strong interaction between NDVI and LST,demonstrating the need to conserve urban vegetation to improve temperature,which positively favours urban ambience indexes.
文摘This paper discusses the response of the thermal insulation Lining of rigid foam potyurethane （PU） derived from castor oil （Ricinus communis） in heat conditions, based on dynamic climate approach. Liners have been widely used, because the coverage of buildings is responsible for the greatest absorption of heat by radiation, but the use of PU foam deMved from this vegetal oil is unprecedented and has the advantage of being biodegradable and renewable. The hot wire paraLleL method provided the thermal conductivity vatue of the foam. The thermo- gravimetric analysis enabled the study of the foam decomposition and its Lifetime by kinetic evaLuation that involves the decomposition process. The PU foam thermal behavior analysis was performed by coLlecting experimental data of internal surface temperature measured by thermocouples and assessed by representative episode of the climatic fact. The results Lead to the conclusion that the PU foamderived from castor oit can be applied to thermat insulation of roof systems and is an environmentaLLy friendly materiaL.
